<p>1. Use IRF240 IRF9240 Mos Tube. The Input Coupling Capacitor Is A 50V\/3.3uF Weimar Capacitor From Germany, The Resistor Is A Five-Ring Metal Resistor, And The Main Circuit Uses A Five-Ring Metal Film Resistor With An Accuracy Of 1%, Ensuring A Good Signal-To-Noise Ratio Of The Whole Machine.</p> <p>2. PCB Adopts 1.6mm Thick Double-Sided Board, 2.0 OZ Copper Thickness, And Full Tin Spraying Process To Good Passing Performance Of Large And Small Currents. Top- PCB Quality.</p> <p>3. The Wiring Layout Of The Entire Circuit Board Is Quite Rigorous And Reasonable, And The Overall PCB Wiring Adopts A One-Point Grounding . This Power Amplifier Board Works Stably And Reliably, With High Output Power;</p> <p>4. The Sound Is Beautiful And Round, And The Sound Field Is Wide. Strong Three-Dimensional Effect, Stable And Powerful Low Frequency, Excellent Signal-To-Noise Ratio, And Wide Dynamic Range;</p> <p>5. The Details Are Clear And The Transient Response Is Excellent. It Can Play All Kinds Of Music Easily And Perform Very Well In The Home Playback Environment.</p> <p>Description:</p> <p>1. Power Supply: +-35V (It Is Recommended To Use Dual 24V AC + Rectifier Filter) It Is Best To Use An Power Supply For Each Channel</p> <p>2. Power: 80W (+-35V 4) 1 Channel</p> <p>3. Distortion: Is 0.012% Into 1 Kilohertz And Full Power; Is 0.015% Into 10 Kilohertz And Full Power</p> <p>4. Circuit Board Size: About 90x85mm</p> <p>5. Plate Size: About 110 (Including Angle Aluminum) x 90 x 25 (Height) Mm</p> <p>6. Magnification: 30 Times</p> <p>7. Measure Quiescent Current: Measure The Voltage At Both Ends Of Point Ab On The Board</p> <p>Note:</p> <p>Different Batches May Have Differences In Product Appearance, Color, And Printed Characters, Which Will Not Affect The Use</p> <p>color:As shown</p> <p>Material:PCB</p> <p>Package Contents:</p> <p>2 Amplifier Module</p> <p>Only the above package content, other products are not included.</p> <p>Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +\/- 1-3cm.</p>